<template>
  <div class="list" ref="wrapper">
		<div>
			<div class="area">
				<div class="title border-topbottom">当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">{{this.currentCity}}</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title border-topbottom">热门城市</div>
				<div class="button-list">
					<div
						class="button-wrapper"
						v-for="item of hot"
						:key="item.id"
						@click="handleCityClick(item.name)"
					>
						<div class="button">{{item.name}}</div>
					</div>
				</div>
			</div>
			
			<div
				class="area"
				v-for="(item, key) of cities"
				:key="key"
				:ref="key"
			>
				<div class="title border-topbottom">{{key}}</div>
				<div class="item-list">
					<div
						class="item border-bottom"
						v-for="innerItem of item"
						:key="innerItem.id"
						@click="handleCityClick(innerItem.name)"
					>
						{{innerItem.name}}
					</div>
				</div>
			</div>
			
		</div>
	</div>
</template>

<script>
	import BScroll from 'better-scroll'
	import { mapState,mapMutations } from 'vuex'
export default {
  name: 'CityList',
	props: {
		hot: Array,
		cities: Object,
		letter: String
	},
  data () {
    return {
      
    }
  },
	computed:{
		...mapState({
			currentCity:'city'
		})
	},
	methods: {
		handleCityClick (city) {
			// this.$store.commit('changeCity',city)
			this.changeCity(city)
			this.$router.push('/')
		},
		...mapMutations(['changeCity'])
	},
	watch: {
		letter () {
			if (this.letter) {
				const element = this.$refs[this.letter][0]
				this.scroll.scrollToElement(element)
			}
		}
	},
	mounted () {
		this.scroll = new BScroll(this.$refs.wrapper)
	},
	
}
</script>

<style scoped lang="scss">
	@import "~@/styles/varibles.scss";
	.border-topbottom{
		&:before{ border-color:#ccc;}
		&:after{ border-color:#ccc;}
	}
	.border-bottom{
		&:before{ border-color:#ccc;}
	}
.list{
	overflow: hidden;
	position: absolute;
	top:1.6rem;
	left:0;
	right:0;
	bottom:0;
	.title{
		line-height: .54rem;
		background: #eee;
		padding-left: .2rem;
		color: #666;
		font-size: .26rem;
	}
	.button-list{
		overflow: hidden;
		padding: .1rem .6rem .1rem .1rem;
		.button-wrapper{
			float: left;
			width:33.33%;
			.button{
				margin:.1rem;
				padding:.1rem 0;
				text-align: center;
				border:.02rem solid #789;
				border-radius: .06rem;
			}
		}
	}
	.item-list{
		.item{
			line-height: .76rem;
			padding:.2rem;
		}
	}
}
</style>
